package com.example.common.chapter04;

import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.TimeUnit;

public class Priority {

    private static volatile boolean notStart = true;
    private static volatile boolean notEnd = true;

    public static void main(String[] args) throws InterruptedException {
        List<Job> jobs = new ArrayList<>();
        for ( int i=0;i<10;i++ ) {
            int priority = i < 5 ? Thread.MIN_PRIORITY : Thread.MAX_PRIORITY;
            Job job = new Job(priority);
            boolean add = jobs.add(job);
            Thread thread = new Thread(job, "Thread:" + i);
            thread.setPriority(priority);
            thread.start();
        }
        notStart = false;
        TimeUnit.SECONDS.sleep(10);
        notEnd = false;
        for (Job job:jobs) {
            System.out.println("Job Priority:" +job.priority+",count:" +job.jobCount);
        }
    }

    static class Job implements Runnable{

        private int priority;
        private long jobCount;

        public Job(int priority) {
            this.priority = priority;
        }

        @Override
        public void run() {
            while(notStart) {
                Thread.yield();
            }
            while (notEnd) {
                Thread.yield();
                jobCount ++ ;
            }
        }
    }
}



